660324941 has 2 divisors, whose sum is σ = 660324942. Its totient is φ = 660324940.

The previous prime is 660324937. The next prime is 660324947. The reversal of 660324941 is 149423066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 637562500 + 22762441 = 25250^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 660324941 - 2² = 660324937 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660324947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330162470 + 330162471.

It is an arithmetic number, because the mean of its divisors is an integer number (330162471).

Almost surely, 2^660324941 is an apocalyptic number.

It is an amenable number.

660324941 is a deficient number, since it is larger than the sum of its proper divisors (1).

660324941 is an equidigital number, since it uses as much as digits as its factorization.

660324941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 660324941 is about 25696.7885347566. The cubic root of 660324941 is about 870.8016308924.

The spelling of 660324941 in words is "six hundred sixty million, three hundred twenty-four thousand, nine hundred forty-one".